javascript - if statement that always executes -

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I am working on a web application which is using a template (smart admin 1.3) and one of the code Come on the strange block. 

  if (! Null) {$ ('nav ul'). Jarvismenu ({accordion: true, speed: $. Menuu_speed, close sign: '& lt; em class = "fa fa-expand -o" & gt; & lt; / em & gt; open, sign in: '& Lt; em class = "fa fi-pump-o"> gt; & lt; / em & gt;'}); } And {warnings ("error - menu anchor does not exist"); }   
 Is there a situation where e-block is not executed? Is this a weird Javascript conference? 
 
 It is not the conference that the community will accept @ as well as an idea of ​​how to develop someone in such a way.

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